Stuart Price
Last Updated

Mould on walls can damage the beauty of your property. Mould can be quite frustrating as well as dangerous for the building. Not only damage to the building, but it can cause various health problems as well. It seems bad and will further give an unsightly appearance.

Due to this, experts recommend that you should immediately take action if you notice any mould on walls. However, most people do not have much knowledge about mould. Due to lack of knowledge, people usually struggle to get rid of mould present on walls.

If you are also among those people who want a permanent solution to removing mould, you should go through this article. Here, you will learn a few simple steps on eradicating mould quickly.


Signs of Mould Growth

If you do not know much about mould, then the chances are that you might not be familiar with the signs of mould growth as well. The signs of mould growth are very much obvious. You will find brown, green or orange spots at the mould location.

You might also observe black spots around the mould. Apart from these coloured spots, there are a few other less apparent signs as well. The mould can also cause cracked or peeling paint.

If you notice the cracking or peeling of the wall paint, the chances are that there is a mould. However, such cracking and peeling can also be the result of continuous water flow.

Further, you may also notice bulging or discolouration because of mould. Not only this, but the mould also causes a musty, damp smell which will let you know about the presence of mould in the home. However, some people confuse mould with mildew. Therefore, you should first learn whether you have mould or mildew on your wall.


Materials Needed to Get Rid of Mould from Walls

If you already have mould grown on the walls, you should purchase some materials from getting rid of it. These materials are;

  • Cleaning rags
  • Sponge
  • Water
  • Chlorine bleach
  • White vinegar
  • Borax powder
  • Spray Bottle
  • Protective gears
  • Scrub brush

Apart from these materials, you may also require plastic sheeting and masking tape if you have a larger area to cover.

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Steps To Eradicate Mould on Walls

By following the given steps, you can easily eradicate the mould present on walls.

Identify the Cause

Identifying the cause is the first thing you will need to do to remove mould from the wall. You should first learn the reason that has given birth to the mould present on the walls.

Either it is due to condensation, humidity or a leaking pipe inside the wall, you should first know it. Once you know the cause, it will become a lot easier for you to remove the mould. Address the issue so that the mould does not return. If there is any water damage, ensure fixing it.

Clean the Area

Before starting to eliminate the mould from walls, you should first clean the area. If there is any furniture, electrical equipment or fabrics near the affected area, make sure to remove it.

For protection, you can use plastic sheets and cover the floor. After that, you will need to use a damp sponge. Take a sponge and add it to dishwashing liquid to clean the area.

Applying a damp sponge filled with dishwashing liquid will help you remove any dirt present in the area. Before doing this, we will recommend you wear protective gear.

Ensure that you have all the rubber gloves, safety glasses and other equipment to keep yourself safe from the disadvantages you may face from exposure to mould. If the mould is inside a room, ensure opening the doors and windows of the room before removing the mould.

Remove the Mould

Once you are done identifying the cause and cleaning the affected area, the next time you need is to remove the mould. The mould that appears on painted interior walls is most likely on the surface. You should focus on removing it first.

Also, removing such a mould be a straightforward task for you. You can utilize household products to get rid of such mould. Some of the household products you can use to remove the mould are white vinegar, baking soda and borax.

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Using these products will surely give you highly effective results within a short time. However, if the mould patch is only on a limited area, then you can also use a natural mould remover for this process. This mould remover will help you easily get rid of the mould from the affected area.

Most of the mould removers come in a spray bottle, which further makes the task easier. It will become effortless for you to apply the mould remover in spray form. However, a mould remover product might not give you quality results if you want to cover a large area.

This is because most of the natural mould removers are not strong enough to deal with large mould. So, what should you do if you have mould covering a large area? Well, for that you can use a chemical cleaner.

You can even use a chemical cleaner for this process. However, make sure that the chemical cleaner you are using is strong enough to deliver you the desired outcome. You can purchase chemical cleaners from any home improvement store.

Moreover, if you have mould on porous walls that involve stone, cement or concrete in its construction, you might find it more challenging to remove mould. Because the mould will not only grow on the surface, but it will spread inside the surface too, making it quite hard for people to remove it.

Therefore, in such a case, you should prefer a more effective solution. You can use a mixture of distilled white vinegar and hydrogen peroxide to remove mould from and within the surface of a porous wall.

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Why Does Mould Grow on Walls?

Many people do not know the reason behind the growth of mould on walls. High humidity and condensation are the prime reasons why you might begin noticing mould on the walls. Apart from this, water leaks can also result in mould growth.

Most of the time, we do not know about the water leaks occurring inside the wall. Such continuous water leakage damages the building and causes mould on the walls, which is a serious concern. You should fix water leakage, if there is any, to keep the walls mould free.

On the other hand, condensation, another cause of mould growth, happens when moisture in the air collides with cold surfaces, cooling to become liquid. Condensation is quite a common concern that arises on walls. On the other side of these walls is cool outdoor air, so they are often colder.

Further, the humidity in the house is increased by drying clothes indoors or by steam from hot water. You might notice mould growing on your walls if your house is humid for a long time. If you do not want to encounter such a concern, you should get rid of the high humidity in your house.

You can minimize it by properly ventilating your house. Make sure to keep the windows and doors open, which will help you minimize the humidity levels. Besides, if you have any leaking pipes inside or near the wall, then you should try fixing them as soon as possible because such leaking pipes can also cause mould.


Some Natural Mould Killers

There are various natural products available that can work as a mould killer. Some of these products give effective results against mould. Some of these natural mould killers include;

Vinegar and Baking Soda

Vinegar and baking soda are among the most popular natural products used for mould killing. Vinegar is a safe as well as effective thing that will let you prevent the growth of mould.

The best thing about vinegar is that it works on all types of walls. Therefore, no matter what type of wall has mould, you can use vinegar to get the best outcome.

Tea Tree Oil

Most people might not be familiar with the fact that tea tree oil can also give great results against mould. The presence of antibacterial and antifungal properties in the tea tree oil makes it an ideal choice against mould. If you want to use tea tree oil to eliminate the mould, ensure following the given steps.

  • Use two cups of water and a single teaspoon of tea tree oil.
  • Add both the water and tea tree oil to a spray bottle and mix it.
  • Now take the spray bottle and spray the solution on the affected area. You can also utilize a clean cloth to wash away the mould.
  • You will only need to leave the tea tree oil on the affected surface for a short time. Keeping the tea tree oil on the affected area will help you kill the mould.


If you have non-porous walls covered with mould, then bleach will be a perfect thing to apply. It will help you kill the roots of the mould, which further prevent regrowth. Though bleach is a bit of a strong solution, you should use it with great care.

Also, ensure that it does not damage the type of wall you want to apply it on. To make the bleach less strong, you can use it with water. However, mixing it with water will still give you the outcome you want.


How to Prevent Further Mould Growth?

Once you have eliminated mould from the walls, you need to make sure that it does not reappear. Following are the few precautions that you should take to keep the surface protected from further mould growth.

  • If you notice any spills or puddles, try to wipe them immediately.
  • After taking a shower, make sure to keep the bathroom door open for some time. Also, keep the ventilation fan running so that humidity does not stay. Do not let the humidity remain in the bathroom for a longer period.
  • Assure that there is no plumbing leakage in your property. If you notice any plumbing leaks, try fixing them as soon as possible. Many kinds of mould can easily grow even only if they get 24 to 48 hours of moisture. If the excess moisture stays for a longer period, then the mould can be more intense.
  • You can also use a towel to dry the area and walls quickly.
  • To avoid the build-up of condensation in enclosed places of your bathroom door, try to shower it if possible.
  • You can use a moisture absorbing desiccant in your bathroom corners. Apart from this, you can also include a dehumidifier in your bathroom to keep it safe from mold. The dehumidifier will be an ideal choice if you live in a humid climate.
  • Ensure to squeegee the glass doors and shower walls in your bathroom. Using the squeegee after every use will help you minimize the moisture, resulting in fewer chances of mould growth. Also, try to avoid the build-up of soap scum and hard water in your bathroom.
  • Another way by which you can prevent further growth of mould spores is by using mould-resistant paint. Using mould-resistant paint in your bathroom will help you keep the mould away without putting in much effort.
  • Make sure to clean your bathroom weekly. For cleaning purposes, you can use disinfecting products. Products like vinegar and bleach can also play a vital role in the cleaning of the bathroom. Apart from bleach and vinegar, you can use other disinfecting products as well.

By keeping these things in mind, you can keep your place free from further mould growth.



Keeping your home safe from mould permanently can be a tough task. But if you know the right tips and approaches about preventing mould spores from targeting your home, this task will become easier.

If you do not know how to handle mould or get rid of mould permanently, this article will help you. Not only will you learn how to get rid of mould, but also you will discover how to prevent mould from further growing.

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